BR9803225A - Liquid-impermeable, air-permeable barrier structures and products made from them. - Google Patents

Liquid-impermeable, air-permeable barrier structures and products made from them.

Info

Publication number
BR9803225A
BR9803225A BR9803225-9A BR9803225A BR9803225A BR 9803225 A BR9803225 A BR 9803225A BR 9803225 A BR9803225 A BR 9803225A BR 9803225 A BR9803225 A BR 9803225A
Authority
BR
Brazil
Prior art keywords
liquid
porous layer
air
porous
impermeable
Prior art date
Application number
BR9803225-9A
Other languages
Portuguese (pt)
Inventor
Vincent Paul Lasko
Mary Gail Ciesielski
Original Assignee
Johnson & Johnson
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Johnson & Johnson filed Critical Johnson & Johnson
Publication of BR9803225A publication Critical patent/BR9803225A/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/539—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/512—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its apertures, e.g. perforations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • A61F13/51456—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its properties
    • A61F13/51458—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its properties being air-pervious or breathable
    • A61F13/5146—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its properties being air-pervious or breathable having apertures of perforations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • A61F13/51456—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its properties
    • A61F13/51458—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its properties being air-pervious or breathable
    • A61F13/51462—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its properties being air-pervious or breathable being defined by a value or parameter
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/24—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/26—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/425—Porous materials, e.g. foams or sponges

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Chemical & Material Sciences (AREA)
  • Vascular Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Materials Engineering (AREA)
  • Hematology (AREA)
  • Dermatology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Laminated Bodies (AREA)

Abstract

Patente de Invenção: <B>"ESTRUTURAS DE BARREIRA IMPERMEáVEL A LìQUIDOS, PERMEáVEL AO AR E PRODUTOS FEITOS DAS MESMAS"<D>. A presente invenção provê uma estrutura de barreira substancialmente impermeável a líquidos, permeável ao ar e os produtos feitos a partir da mesma, tais como absorventes íntimos higiênicos, forros para calças íntimas, produtos para incontinência e fraldas. Estrutura de barreira possui uma camada porosa tendo lados opostos, a camada porosa tendo: um substrato poroso com poros, que se estendem entre os lados opostos que correspondem aos lados opostos da camada porosa, pela qual um líquido pode traspassar o substrato; e partículas que são fundidas em pelo menos um lado do substrato poroso de modo a restringir a entrada do líquido nos poros; em que a camada porosa é resistente à penetração do líquido quando o mesmo se encontra contido em uma estrutura absorvente que se sobrepõe ao lado da camada porosa na qual as partículas são fundidas e fica sob uma carga de uma libra por polegada quadrada; e em que a camada porosa tem um valor de permeabilidade ao ar Frazier na faixa de mais do que zero acerca de 861 mm^ 3^/m^ 2^/min (80 mm^ 3^/pés^ 2^/min). Estrutura de barreira substancialmente impermeável a líquidos, permeável ao ar é distinguida pelo fato de as partículas que são fundidas no substrato poroso estarem predominantemente sobre a superfície do substrato poroso ao invés de misturadas e penetrarem na profundidade dos materiais que compreendem o substrato poroso.Invention Patent: <B> "NETWORK WATERPROOF BARRIER STRUCTURES, PERMEABLE TO THE AIR AND PRODUCTS MADE FROM THE SAME" <D>. The present invention provides a substantially liquid-impermeable, air-permeable barrier structure and products made from it, such as sanitary napkins, underwear liners, incontinence products and diapers. Barrier structure has a porous layer having opposite sides, the porous layer having: a porous substrate with pores, which extend between the opposite sides corresponding to the opposite sides of the porous layer, through which a liquid can pass through the substrate; and particles that are melted on at least one side of the porous substrate in order to restrict the entry of liquid into the pores; wherein the porous layer is resistant to penetration of the liquid when it is contained in an absorbent structure that overlaps next to the porous layer into which the particles are melted and is under a load of one pound per square inch; and wherein the porous layer has a Frazier air permeability value in the range of more than zero about 861 mm ^ 3 ^ / m ^ 2 ^ / min (80 mm ^ 3 ^ / feet ^ 2 ^ / min). A substantially liquid-impermeable, air-permeable barrier structure is distinguished by the fact that the particles that are fused to the porous substrate are predominantly on the surface of the porous substrate rather than mixed and penetrate the depth of the materials that comprise the porous substrate.

BR9803225-9A 1997-08-25 1998-08-25 Liquid-impermeable, air-permeable barrier structures and products made from them. BR9803225A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/917,987 US6277104B1 (en) 1997-08-25 1997-08-25 Air permeable, liquid impermeable barrier structures and products made therefrom

Publications (1)

Publication Number Publication Date
BR9803225A true BR9803225A (en) 2000-01-11

Family

ID=25439608

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9803225-9A BR9803225A (en) 1997-08-25 1998-08-25 Liquid-impermeable, air-permeable barrier structures and products made from them.

Country Status (17)

Country Link
US (1) US6277104B1 (en)
EP (1) EP0900571B1 (en)
JP (1) JPH11128272A (en)
CN (1) CN1321624C (en)
AR (1) AR016867A1 (en)
AT (1) ATE284228T1 (en)
AU (1) AU757223B2 (en)
BR (1) BR9803225A (en)
CA (1) CA2245335C (en)
CO (1) CO5060473A1 (en)
CZ (1) CZ269298A3 (en)
DE (1) DE69828002T2 (en)
ES (1) ES2234054T3 (en)
HU (1) HUP9801909A1 (en)
SG (1) SG79990A1 (en)
TW (1) TW412416B (en)
ZA (1) ZA987643B (en)

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Also Published As

Publication number Publication date
EP0900571B1 (en) 2004-12-08
CA2245335C (en) 2008-02-12
US6277104B1 (en) 2001-08-21
CA2245335A1 (en) 1999-02-25
CN1209312A (en) 1999-03-03
CN1321624C (en) 2007-06-20
HUP9801909A1 (en) 1999-10-28
JPH11128272A (en) 1999-05-18
DE69828002T2 (en) 2005-11-24
ATE284228T1 (en) 2004-12-15
CZ269298A3 (en) 1999-03-17
AU757223B2 (en) 2003-02-06
ZA987643B (en) 2000-02-24
AU7999998A (en) 1999-03-04
EP0900571A3 (en) 2000-10-11
TW412416B (en) 2000-11-21
SG79990A1 (en) 2001-04-17
DE69828002D1 (en) 2005-01-13
ES2234054T3 (en) 2005-06-16
AR016867A1 (en) 2001-08-01
HU9801909D0 (en) 1998-10-28
EP0900571A2 (en) 1999-03-10
CO5060473A1 (en) 2001-07-30

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